1380578573 has 4 divisors (see below), whose sum is σ = 1506085728. Its totient is φ = 1255071420.

The previous prime is 1380578533. The next prime is 1380578581. The reversal of 1380578573 is 3758750831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1380578573 - 2⁶ = 1380578509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380578533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62753561 + ... + 62753582.

It is an arithmetic number, because the mean of its divisors is an integer number (376521432).

Almost surely, 2^1380578573 is an apocalyptic number.

It is an amenable number.

1380578573 is a deficient number, since it is larger than the sum of its proper divisors (125507155).

1380578573 is a wasteful number, since it uses less digits than its factorization.

1380578573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125507154.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 1380578573 is about 37156.1377567691. The cubic root of 1380578573 is about 1113.4918506786.

The spelling of 1380578573 in words is "one billion, three hundred eighty million, five hundred seventy-eight thousand, five hundred seventy-three".